Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 09:08

General

  • Target

    a2ca1e496ce7f3d6846692fb5001f749d0b192c2813370d2b65adc83fe11f02c_Sigmanly.exe

  • Size

    2.9MB

  • MD5

    a6e7881e1c86514eba66fce89d598015

  • SHA1

    5dd1632a86c8ddf8a95f63133769480143d56357

  • SHA256

    a2ca1e496ce7f3d6846692fb5001f749d0b192c2813370d2b65adc83fe11f02c

  • SHA512

    c344c667a0355049288c60e3f340c9d4777ec0cbca87f5e84a5e7d60a1540fc96d231d3cc486faed456fd3b017d8f93009149bfa484c39e88633fc7543a56efd

  • SSDEEP

    24576:k+q6qdq+2NBfAFzwRvDYyDZOc7I4dA55srHSYhdtFYJBtKDInnhKaKH87pH73BUt:hq6qdwfwzcY8ZOcxhrFYJaCKmjEA

Malware Config

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes
  • install_dir

    abc3bc1985

  • install_file

    skotes.exe

  • strings_key

    8a35cf2ea38c2817dba29a4b5b25dcf0

  • url_paths

    /Zu7JuNko/index.php

rc4.plain

Extracted

Family

cryptbot

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Amadey family
  • CryptBot

    CryptBot is a C++ stealer distributed widely in bundle with other software.

  • Cryptbot family
  • Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 8 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 3 IoCs
  • Identifies Wine through registry keys 2 TTPs 4 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 4 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a2ca1e496ce7f3d6846692fb5001f749d0b192c2813370d2b65adc83fe11f02c_Sigmanly.exe
    "C:\Users\Admin\AppData\Local\Temp\a2ca1e496ce7f3d6846692fb5001f749d0b192c2813370d2b65adc83fe11f02c_Sigmanly.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe
      "C:\Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2872
      • C:\Users\Admin\AppData\Local\Temp\1020043001\eee4ca5e4b.exe
        "C:\Users\Admin\AppData\Local\Temp\1020043001\eee4ca5e4b.exe"
        3⤵
        • Enumerates VirtualBox registry keys
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Identifies Wine through registry keys
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1872
      • C:\Users\Admin\AppData\Local\Temp\1020044001\3ade692ea9.exe
        "C:\Users\Admin\AppData\Local\Temp\1020044001\3ade692ea9.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Identifies Wine through registry keys
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        PID:1948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\1020043001\eee4ca5e4b.exe

    Filesize

    4.3MB

    MD5

    c68297282df3b519f90b07be11d5b2c3

    SHA1

    b458d00cab0449a1c9f0f9225cc5c326199425f6

    SHA256

    b33d993baf0f52b1f0e01b6d6d4f568c37c21a641f41c8f6fb72c493f80a91a7

    SHA512

    b70746441c6cf4c6df94cd1171e3bb1737462cec5eb5739ef5e75a52d9209fdb32bb3c85ed632c0a68834e22fc21476233aa706f37c0f7f74d701147c0a05d22

  • C:\Users\Admin\AppData\Local\Temp\1020044001\3ade692ea9.exe

    Filesize

    4.3MB

    MD5

    4b0cb8cea5700882ecce813c6bb87837

    SHA1

    d5a6dc5c04a2269897b0dea5041352b7198324ed

    SHA256

    fc85d7c03c2859a7a9f7c6450931aa0c856f0e3b24918ba3794694cc29ce1966

    SHA512

    dd50a5b28aa4091213ef065a78211c7d586909d141d468341af12eeae0d547963cfe1f72056edcb6ca2006be5b87a2fef236242d6057cf02b009541060da1380

  • \Users\Admin\AppData\Local\Temp\abc3bc1985\skotes.exe

    Filesize

    2.9MB

    MD5

    a6e7881e1c86514eba66fce89d598015

    SHA1

    5dd1632a86c8ddf8a95f63133769480143d56357

    SHA256

    a2ca1e496ce7f3d6846692fb5001f749d0b192c2813370d2b65adc83fe11f02c

    SHA512

    c344c667a0355049288c60e3f340c9d4777ec0cbca87f5e84a5e7d60a1540fc96d231d3cc486faed456fd3b017d8f93009149bfa484c39e88633fc7543a56efd

  • memory/1872-68-0x0000000001070000-0x0000000001CD4000-memory.dmp

    Filesize

    12.4MB

  • memory/1872-42-0x0000000001070000-0x0000000001CD4000-memory.dmp

    Filesize

    12.4MB

  • memory/1872-62-0x0000000001070000-0x0000000001CD4000-memory.dmp

    Filesize

    12.4MB

  • memory/1872-69-0x0000000001070000-0x0000000001CD4000-memory.dmp

    Filesize

    12.4MB

  • memory/1872-64-0x0000000001070000-0x0000000001CD4000-memory.dmp

    Filesize

    12.4MB

  • memory/1948-63-0x00000000000F0000-0x0000000000D66000-memory.dmp

    Filesize

    12.5MB

  • memory/1948-59-0x00000000000F0000-0x0000000000D66000-memory.dmp

    Filesize

    12.5MB

  • memory/2116-0-0x0000000000CB0000-0x0000000000FCB000-memory.dmp

    Filesize

    3.1MB

  • memory/2116-15-0x0000000000CB0000-0x0000000000FCB000-memory.dmp

    Filesize

    3.1MB

  • memory/2116-16-0x0000000006400000-0x000000000671B000-memory.dmp

    Filesize

    3.1MB

  • memory/2116-4-0x0000000000CB0000-0x0000000000FCB000-memory.dmp

    Filesize

    3.1MB

  • memory/2116-2-0x0000000000CB1000-0x0000000000CDF000-memory.dmp

    Filesize

    184KB

  • memory/2116-3-0x0000000000CB0000-0x0000000000FCB000-memory.dmp

    Filesize

    3.1MB

  • memory/2116-1-0x00000000773A0000-0x00000000773A2000-memory.dmp

    Filesize

    8KB

  • memory/2872-23-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-18-0x0000000000031000-0x000000000005F000-memory.dmp

    Filesize

    184KB

  • memory/2872-44-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-60-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-19-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-75-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-41-0x0000000006000000-0x0000000006C64000-memory.dmp

    Filesize

    12.4MB

  • memory/2872-40-0x0000000006000000-0x0000000006C64000-memory.dmp

    Filesize

    12.4MB

  • memory/2872-22-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-65-0x0000000006000000-0x0000000006C64000-memory.dmp

    Filesize

    12.4MB

  • memory/2872-21-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-66-0x0000000005EC0000-0x0000000006B36000-memory.dmp

    Filesize

    12.5MB

  • memory/2872-67-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-43-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-17-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-70-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-71-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-72-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-73-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-74-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-58-0x0000000005EC0000-0x0000000006B36000-memory.dmp

    Filesize

    12.5MB

  • memory/2872-76-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-77-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-78-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-79-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB

  • memory/2872-80-0x0000000000030000-0x000000000034B000-memory.dmp

    Filesize

    3.1MB